Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
1123635 |
10/30/2023 |
ATOX |
Acute Toxicity-Rainbow Trout-survival 3-Sample Median limit is 90 % survival and reported value was 25 % survival at EFF-003. |
As of 2/24/2024: Investigation ongoing. See letter communications between RB and discharger uploaded to ECM, dated 11/9/2023 and 11/22/2023. |
Violation |
A |
eSMR |
1123630 |
10/30/2023 |
ATOX |
Acute Toxicity-Rainbow Trout-survival Single Sample Maximum limit is 70 % survival and reported value was 25.0 % survival at EFF-003. |
As of 2/24/2024: Investigation ongoing. See letter communications between RB and discharger uploaded to ECM, dated 11/9/2023 and 11/22/2023. |
Violation |
A |
eSMR |
1123631 |
08/14/2023 |
ATOX |
Acute Toxicity-Rainbow Trout-survival 3-Sample Median limit is 90.0 % survival and reported value was 25.0 % survival at EFF-003. |
As of 2/24/2024: Investigation ongoing. See letter communications between RB and discharger uploaded to ECM, dated 11/9/2023 and 11/22/2023. |
Violation |
A |
eSMR |
1123632 |
08/14/2023 |
ATOX |
Acute Toxicity-Rainbow Trout-survival Single Sample Maximum limit is 70.0 % survival and reported value was 20.0 % survival at EFF-003. |
As of 2/24/2024: Investigation ongoing. See letter communications between RB and discharger uploaded to ECM, dated 11/9/2023 and 11/22/2023. |
Violation |
A |
eSMR |
1123634 |
07/31/2023 |
ATOX |
Acute Toxicity-Rainbow Trout-survival 3-Sample Median limit is 90.0 % survival and reported value was 25.0 % survival at EFF-003. |
As of 2/24/2024: Investigation ongoing. See letter communications between RB and discharger uploaded to ECM, dated 11/9/2023 and 11/22/2023. |
Violation |
A |
eSMR |
1123633 |
07/31/2023 |
ATOX |
Acute Toxicity-Rainbow Trout-survival Single Sample Maximum limit is 70.0 % survival and reported value was 25.0 % survival at EFF-003. |
As of 2/24/2024: Investigation ongoing. See letter communications between RB and discharger uploaded to ECM, dated 11/9/2023 and 11/22/2023. |
Violation |
A |
eSMR |
1123628 |
07/24/2023 |
ATOX |
Acute Toxicity-Rainbow Trout-survival Single Sample Maximum limit is 70.0 % survival and reported value was 25.0 % survival at EFF-003. |
As of 2/24/2024: Investigation ongoing. See letter communications between RB and discharger uploaded to ECM, dated 11/9/2023 and 11/22/2023. |
Violation |
A |
eSMR |
1124405 |
01/30/2023 |
ATOX |
Acute Toxicity-Rainbow Trout-survival 3-Sample Median limit is 90 % survival and reported value was 75 % survival at EFF-003. |
As of 2/24/2024: Investigation ongoing. See letter communications between RB and discharger uploaded to ECM, dated 11/9/2023 and 11/22/2023. |
Violation |
A |
Report |
1123629 |
01/30/2023 |
ATOX |
Acute Toxicity-Rainbow Trout-survival Single Sample Maximum limit is 70 % survival and reported value was 40.0 % survival at EFF-003. |
As of 2/24/2024: Investigation ongoing. See letter communications between RB and discharger uploaded to ECM, dated 11/9/2023 and 11/22/2023. |
Violation |
A |
eSMR |
1115164 |
10/24/2022 |
ATOX |
Acute Toxicity-Rainbow Trout-survival 3-Sample Median limit is 90.0 % survival and reported value was 40 % survival at EFF-003. |
Corrective actions may include more thorough flushing operations of the aqueduct to limit solids loading into the plant and more frequent removal of sludge from the basins via truck runs to the wastewater treatment plant. If there are concerns about FSCC solids during toxicity testing the lab may employ parallel kaolin testing. |
Violation |
A |
eSMR |
1115163 |
10/17/2022 |
ATOX |
Acute Toxicity-Rainbow Trout-survival 3-Sample Median limit is 90.0 % survival and reported value was 40 % survival at EFF-003. |
Corrective actions may include more thorough flushing operations of the aqueduct to limit solids loading into the plant and more frequent removal of sludge from the basins via truck runs to the wastewater treatment plant. If there are concerns about FSCC solids during toxicity testing the lab may employ parallel kaolin testing. |
Violation |
A |
eSMR |
1112927 |
10/17/2022 |
ATOX |
Acute Toxicity-Rainbow Trout-survival Single Sample Maximum limit is 70.0 % survival and reported value was 0.0 % survival at EFF-003. |
Corrective actions may include more thorough flushing operations of the aqueduct to limit solids loading into the plant and more frequent removal of sludge from the basins via truck runs to the wastewater treatment plant. If there are concerns about FSCC solids during toxicity testing the lab may employ parallel kaolin testing. |
Violation |
A |
eSMR |
1112928 |
07/25/2022 |
ATOX |
Acute Toxicity-Rainbow Trout-survival Single Sample Maximum limit is 70.0 % survival and reported value was 40.0 % survival at EFF-003. |
Accelerated monitoring instituted immediately. Parallel kaolin testing run. 95% survival result during follow-up test (sample taken on 08/08/22) |
Violation |
A |
eSMR |
1099933 |
01/25/2020 |
CAT2 |
Dichlorobromomethane Monthly Average (Mean) limit is 3.2 ug/L and reported value was 3.43 ug/L at EFF-003. |
Upon confirmation of the exceedance and in accordance with the NPDES permit the District immediately notified the RWQCB and initiated accelerated monitoring for DCBM at EFF-003, until compliance was achieved.
The District believes the exceedance was caused by a temporary change in water supply to the OrWTP. The District has the ability to shift the source water to the OrWTP to meet demand challenges during times of drought, perform necessary maintenance, and/or other events. The District is in the midst of a critical capital project, which includes a UV system. This new system will reduce the amount of chlorine disinfection byproducts generated. |
Violation |
U |
eSMR |
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
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